I just bought this 2000 Cherokee with 140,000 miles for $600. The car has a bad knock and I am trying to figure it out. The video below should help.

https://www.youtube.com/watch?v=xEFY...ature=youtu.be

I checked the torque converter and the bolts were on tight. I did NOT check for cracks, it slipped my mind. I am thinking that could be it, but it sounds more like it is coming from the bottom end. It drives normally and there is no power loss. The oil pressure sits right around 40.

Any help is appreciated. Thank you.